From 728d2c0de5936a329b4996fafabaaf7dda1da094 Mon Sep 17 00:00:00 2001
From: VaDiM <vadim.4.ivanov@gmail.com>
Date: Fri, 19 Jun 2026 21:14:58 +0300
Subject: [PATCH] Fix m_IndexBuffer decompression when m_IndexFormat != 0.
 Close #147

This might be a game-specific behavior.. but it should be safe to add, in theory
---
 AssetStudio/Classes/Mesh.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/AssetStudio/Classes/Mesh.cs b/AssetStudio/Classes/Mesh.cs
index 48009c5..cc64aee 100644
--- a/AssetStudio/Classes/Mesh.cs
+++ b/AssetStudio/Classes/Mesh.cs
@@ -1238,7 +1238,9 @@ namespace AssetStudio
             //IndexBuffer
             if (m_CompressedMesh.m_Triangles.m_NumItems > 0)
             {
-                m_IndexBuffer = Array.ConvertAll(m_CompressedMesh.m_Triangles.UnpackInts(), x => (uint)x);
+                m_IndexBuffer = m_Use16BitIndices
+                    ? Array.ConvertAll(m_CompressedMesh.m_Triangles.UnpackInts(), x => (uint)x)
+                    : MemoryMarshal.Cast<byte, uint>(m_CompressedMesh.m_Triangles.m_Data).ToArray(); //sus
             }
             //Color
             if (m_CompressedMesh.m_Colors?.m_NumItems > 0)